Quiero saber acerca de...

12128

Federal Register / Vol. 86, No. 39 / Tuesday, March 2, 2021 / Proposed Rules the unsafe condition described previously is likely to exist or develop in other products of the same type design.

a second stage planet gear installed in the MGB, which could result in failure of the MGB and subsequent loss of control of the helicopter. See the MCAI
for additional background information.

Proposed AD Requirements This proposed AD would require accomplishing the actions specified in EASA AD 20180272, described previously, as incorporated by reference, except for any differences identified as exceptions in the regulatory text of this proposed AD.

Related Service Information Under 1
CFR Part 51
EASA AD 20180272 describes procedures for repetitively inspecting the MGB particle detector and the MGB
bottom housing oil sump for metal particles, analyzing any metal particles that are found, and replacement of the MGB if necessary. This material is reasonably available because the interested parties have access to it through their normal course of business or by the means identified in the ADDRESSES section.
FAAs Determination and Requirements of This Proposed AD
This product has been approved by the aviation authority of another country, and is approved for operation in the United States. Pursuant to the bilateral agreement with the State of Design Authority, the FAA has been notified of the unsafe condition described in the MCAI referenced above. The FAA is proposing this AD
because the FAA evaluated all the relevant information and determined
Explanation of Required Compliance Information In the FAAs ongoing efforts to improve the efficiency of the AD
process, the FAA initially worked with Airbus and EASA to develop a process to use certain EASA ADs as the primary source of information for compliance with requirements for corresponding FAA ADs. The FAA has since coordinated with other manufacturers and civil aviation authorities CAAs to use this process. As a result, EASA AD
20180272 will be incorporated by reference in the FAA final rule. This proposed AD would, therefore, require compliance with EASA AD 20180272
in its entirety, through that incorporation, except for any differences identified as exceptions in the
regulatory text of this proposed AD.
Using common terms that are the same as the heading of a particular section in the EASA AD does not mean that operators need comply only with that section. For example, where the AD
requirement refers to all required actions and compliance times, compliance with this AD requirement is not limited to the section titled Required Actions and Compliance Times in the EASA AD. Service information specified in EASA AD
20180272 that is required for compliance with EASA AD 20180272
will be available on the internet at https www.regulations.gov by searching for and locating Docket No.
FAA20210105 after the FAA final rule is published.
Interim Action The FAA considers this proposed AD
interim action. If final action is later identified, the FAA might consider further rulemaking then.
Costs of Compliance The FAA estimates that this proposed AD affects 15 helicopters of U.S.
registry. The FAA estimates the following costs to comply with this proposed AD:

ESTIMATED COSTS FOR REQUIRED ACTIONS
Labor cost
Parts cost
Cost per product
Cost on U.S.
operators
5 work-hours $85 per hour = $425

$0

$425

$6,375

The FAA estimates the following costs to do any necessary on-condition replacements that would be required
based on the results of any required actions. The FAA has no way of determining the number of helicopters
that might need these on-condition replacements:

ESTIMATED COSTS OF ON-CONDITION ACTIONS
Parts cost
40 work-hours $85 per hour = $3,400

$600,000 overhauled

Authority for This Rulemaking
jbell on DSKJLSW7X2PROD with PROPOSALS

Cost per product
Labor cost
Title 49 of the United States Code specifies the FAAs authority to issue rules on aviation safety. Subtitle I, section 106, describes the authority of the FAA Administrator. Subtitle VII:
Aviation Programs, describes in more detail the scope of the Agencys authority.
The FAA is issuing this rulemaking under the authority described in Subtitle VII, Part A, Subpart III, Section 44701: General requirements. Under that section, Congress charges the FAA

VerDate Sep<11>2014

16:34 Mar 01, 2021

Jkt 253001

with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds necessary for safety in air commerce.
This regulation is within the scope of that authority because it addresses an unsafe condition that is likely to exist or develop on products identified in this rulemaking action.
Regulatory Findings The FAA determined that this proposed AD would not have federalism
PO 00000

Frm 00010

Fmt 4702

Sfmt 4702

$603,400

implications under Executive Order 13132. This proposed AD would not have a substantial direct effect on the States, on the relationship between the national Government and the States, or on the distribution of power and responsibilities among the various levels of government.
For the reasons discussed above, I
certify this proposed regulation:
1 Is not a significant regulatory action under Executive Order 12866, 2 Will not affect intrastate aviation in Alaska, and
E:FRFM02MRP1.SGM

02MRP1